Carboxylic acids and esters Quiz
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5 questions, one answer each
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1. Which compound is formed when propanoic acid reacts with ethanol in the presence of an acid catalyst?
- A. Propyl ethanoate
- B. Ethyl propanoate
- C. Ethyl ethanoate
- D. Propanal
2. A colourless liquid gives bubbles of gas with sodium carbonate solution. It is most likely to be:
- A. A carboxylic acid
- B. An ester
- C. An alcohol
- D. An aldehyde
3. What are the products of heating ethyl ethanoate with aqueous sodium hydroxide?
- A. Ethanoic acid and ethanol
- B. Sodium ethanoate and water
- C. Sodium ethanoate and ethanol
- D. Ethanal and ethanol
4. Soap is made by heating a fat with sodium hydroxide. What is soap?
- A. Propane-1,2,3-triol
- B. A methyl ester
- C. A long-chain carboxylic acid
- D. The sodium salt of a long-chain carboxylic acid
5. Biodiesel is made by reacting vegetable oil with:
- A. Ethanol and no catalyst
- B. Water and sulfuric acid only
- C. Methanol and a catalyst
- D. Sodium hydroxide followed by acid only